Share 'The Three B's - Buttons, Backgrounds, and Banners'

I am looking for some really cool streamlined backgrounds and banners for my blog. Also, I need a new button since the one I made has someone else's art on it, and I'd really like my own. I've made my own background and banner, but they really don't express what I'm trying to accomplish with my blog.
I've seen some really nice custom work, but I don't have the $$ to have one made, and I am pretty…